AU1

resonanceabsorbtion: ambiance sound waves

soundrange: chromatic, 13 tones

operational areas: streets, squares, malls, cinemas, concert halls, discotheques

AU2

resonanceabsorbtion: subsonic noise (Seismophon)

soundrange: pentatonic, 5 tones

operational areas: streets, bridges, train stations, subway stations

AU3

resonanceabsorbtion: ambiance sound waves

soundrange: monotone, 1 tone

operational areas: streets, squares, malls, airports

AU4

resonanceabsorbtion: ambiance sound waves

soundrange: interval, (fourth), 2 tones

operational areas: parks, zoos, central reservations

Testfahrzeug (testing-car)

resonanceabsorbation: ambiance sound waves, vibrations from driving

soundrange: monotone

operational areas: streets, test runs, technical base station

AudioUnits

AU5

resonanceabsorbtion: electromagnetic waves, dynamic magnetic fields

soundrange: electromagnetic noise, 20 - 20 000 Hz

operational areas: urban area, overhead contact lines

AU6

resonanceabsorbtion: ambiance sound waves

soundrange: pentatonic, 5 tones

operational areas: streets, squares, malls

Quelle_1 (source_1)

rendition: 360° sound source

soundrange: 30 - 10 000 Hz

operational area: testing unit for the determination of spaces, replay of AU-signals

AU7

resonanceabsorbtion: ambiance sound waves

soundrange: Fis-major, 7 tones

operational areas: streets, squares, malls

WNG (White Noise Generator)

rendition: mono sound source

soundrange: white noise

operational area: museums, galleries, exhibitions

AU9

resonanceabsorbtion: ambiance sound waves

soundrange: C-major-triad, 3 tones

operational area: streets, squares, malls